MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d05649a91cebb1b3cfa6133a69f39b94ea876cb9855df55573244b7d6504fac1. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


NanoCore


Vendor detections: 10


Intelligence 10 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d05649a91cebb1b3cfa6133a69f39b94ea876cb9855df55573244b7d6504fac1
SHA3-384 hash: f59f3362d563adf4c651caf2e4f734fcd6114c62f205c3b360d65c40804cfae171a5afc1d0d8402f2d940283eee1f0c9
SHA1 hash: 12a0e970d942de08c7ec2121219395894b8186b4
MD5 hash: c591ce3301a6274cc170352360c1b23c
humanhash: moon-stream-saturn-eight
File name:DHL Shipping Documents Original BL, Inv, parking list, pdf.exe
Download: download sample
Signature NanoCore
Create hunting rule
File size:894'464 bytes
First seen:2020-08-31 10:20:22 UTC
Last seen:2020-08-31 11:13:22 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 12288:jaNT4KEpX2lQK0xadprRnterXZoEqacsDW/5WmQynFCwGcNG1iLzZ53Ay9+HmPN+:jap4ba7tn6eacrlG1iL/3Ak+Hm1dc04
Threatray 1'093 similar samples on MalwareBazaar
TLSH 0B15CF435319972DDC1873742470C4BCA2B27E86EA38E09CEDCB3DAB797B14DA199583
Reporter abuse_ch
Tags:DHL exe NanoCore RAT


Avatar
abuse_ch
Malspam distributing NanoCore:

HELO: sgw.vservers.es
Sending IP: 149.62.173.222
From: DHL Express Cargo <delivery@dhl.com>
Subject: DHL Shipping Document
Attachment: DHL Shipping Documents Original BL, Inv, parking list, pdf.iso (contains "DHL Shipping Documents Original BL, Inv, parking list, pdf.exe")

NanoCore RAT C2:
graceland777.ddns.net

Intelligence

File Origin
# of uploads :
2
# of downloads :
190
Origin country :
n/a
Vendor Threat Intelligence
Detection:
NanoCore
Create hunting rule
Link:
https://www.capesandbox.com/analysis/53377/
Detection(s):
SecuriteInfo.com.Generic.mg.c591ce3301a6274c.13017.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a file in the %AppData% subdirectories
Creating a file in the Program Files subdirectories
DNS request
Connection attempt
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Unauthorized injection to a system process
Result
Threat name:
Nanocore
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/455200
Signature
.NET source code contains potential unpacker
Allocates memory in foreign processes
Detected Nanocore Rat
Icon mismatch, binary includes an icon from a different legit application in order to fool users
Initial sample is a PE file and has a suspicious name
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses dynamic DNS services
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected AntiVM_3
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 279975 Sample: DHL Shipping Documents  Ori... Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 41 graceland777.ddns.net 2->41 45 Malicious sample detected (through community Yara rule) 2->45 47 Multi AV Scanner detection for dropped file 2->47 49 Icon mismatch, binary includes an icon from a different legit application in order to fool users 2->49 51 13 other signatures 2->51 9 DHL Shipping Documents  Original BL, Inv, parking list, pdf.exe 7 2->9         started        13 dhcpmon.exe 4 2->13         started        signatures3 process4 file5 33 C:\Users\user\AppData\...\BhTreJWjjnyn.exe, PE32 9->33 dropped 35 C:\Users\...\BhTreJWjjnyn.exe:Zone.Identifier, ASCII 9->35 dropped 37 C:\Users\user\AppData\Local\...\tmp44E7.tmp, XML 9->37 dropped 39 DHL Shipping Docum...g list, pdf.exe.log, ASCII 9->39 dropped 53 Writes to foreign memory regions 9->53 55 Allocates memory in foreign processes 9->55 57 Injects a PE file into a foreign processes 9->57 15 RegSvcs.exe 1 10 9->15         started        19 schtasks.exe 1 9->19         started        21 conhost.exe 13->21         started        signatures6 process7 dnsIp8 43 graceland777.ddns.net 23.105.131.131, 49711, 49715, 49716 LEASEWEB-USA-NYC-11US United States 15->43 29 C:\Users\user\AppData\Roaming\...\run.dat, Non-ISO 15->29 dropped 31 C:\Program Files (x86)\...\dhcpmon.exe, PE32 15->31 dropped 23 conhost.exe 19->23         started        25 MpCmdRun.exe 1 21->25         started        file9 process10 process11 27 conhost.exe 25->27         started       
Detection:
nanocore
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d05649a91cebb1b3cfa6133a69f39b94ea876cb9855df55573244b7d6504fac1/
Threat name:
ByteCode-MSIL.Spyware.Negasteal
Create hunting rule
Status:
Malicious
First seen:
2020-08-31 04:10:02 UTC
File Type:
PE (.Net Exe)
Extracted files:
6
AV detection:
21 of 29 (72.41%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2bletki45oy3ht5gcm5gt443stvio3fzqvo7kvlterfx2zie7laq._file
Verdict:
malicious
Label(s):
nanocorerat
Create hunting rule
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d98b551ba123d7020b8bcc1835f0bbeb103e50d18a3d341771e1a05b1edfaf87
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e29e9d9beb5ce8187decf038cdc0b1d3102b4cfe43715a3b4f934098a943ebed
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NanoCore
+ 1'083 additional samples on MalwareBazaar
Result
Malware family:
nanocore
Create hunting rule
Score:
  10/10
Tags:
keylogger trojan stealer spyware family:nanocore persistence
Link:
https://tria.ge/reports/200831-qd2tnwtz46/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Program Files directory
Suspicious use of SetThreadContext
Adds Run key to start application
NanoCore
Malware Config
C2 Extraction:
graceland777.ddns.net:7771
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Kryptik
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/d05649a91cebb1b3cfa6133a69f39b94ea876cb9855df55573244b7d6504fac1

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:ach_NanoCore
Create hunting rule
Author:abuse.ch
Rule name:Nanocore
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Nanocore in memory
Reference:internal research
Rule name:Nanocore_RAT_Feb18_1
Create hunting rule
Author:Florian Roth
Description:Detects Nanocore RAT
Reference:Internal Research - T2T
Rule name:Nanocore_RAT_Gen_2
Create hunting rule
Author:Florian Roth
Description:Detetcs the Nanocore RAT
Reference:https://www.sentinelone.com/blogs/teaching-an-old-rat-new-tricks/
Rule name:win_nanocore_w0
Create hunting rule
Author: Kevin Breen <kevin@techanarchy.net>

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

NanoCore

iso 5ac67cac484bcd768761b71560e299eab7226ec17d3bf9bea824791695a6be11

NanoCore

Executable exe d05649a91cebb1b3cfa6133a69f39b94ea876cb9855df55573244b7d6504fac1

(this sample)

  
Dropped by
MD5 5d0d23da814420f39e3aeb999a3bab51
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53377/
  
Dropped by
SHA256 5ac67cac484bcd768761b71560e299eab7226ec17d3bf9bea824791695a6be11

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